Casement & Awning Windows

Maximum Ventilation, Maximum Seal

Casement windows are hinged on one side and swing outward like a door, operated by a simple crank mechanism. Because the entire sash opens — not just half of it — casement windows provide 100% of the window area as ventilation, making them the most efficient window style for moving air through a room. When closed, the sash presses firmly against the frame seal, creating an exceptionally tight, draft-free closure.

Awning windows work on the same principle but are hinged at the top and swing outward at the bottom. This configuration has a practical advantage: you can leave an awning window open during light rain and the water will run off the open sash rather than into the room. They're a popular choice for kitchens, bathrooms, and basements where ventilation is important even in wet weather.

Both casement and awning windows are Energy Star certified when paired with our Low-E glass options. The outward-swinging design means there are no sash tracks to accumulate dirt, and the crank mechanism is smooth and durable. Suburban Construction installs both styles throughout the Quad Cities with a lifetime workmanship guarantee.